Distortet ID of textbox

Hi 
I have a textbox within a listbox. This is how pretty the id looks when viewed in source code (aspx)


<asp:TextBox ID="txtProductBillede" runat="server" Width="100px" />
And this is the monster that comes out when viewed in a browser (eg. IE > View source code).


<input name="ctl00$BreadText$ProductsListView$ctrl1$txtProductBillede" id="ctl00_BreadText_ProductsListView_ctrl1_txtProductBillede" style="width: 100px;" type="text"/>

I'm in a situation where I need to hit this textbox using its ID and this becomes rather diffcult when the ID seems to change all the time.  This is the java script I'm trying to hit it with.
< ...